package com.lq.springcloud.Service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    public String paymentInfoOk(Long id){
        return "线程池："+Thread.currentThread().getName()+"paymentInfoOk,id: ";
    }

    @HystrixCommand(fallbackMethod = "paymentInfoFalseHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value = "5000")
    })
    public String paymentInfoFalse(Long id){
        try{
            TimeUnit.SECONDS.sleep(3000);
        } catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+"paymentInfoFalse,id: ";
    }

    public String  paymentInfoFalseHandler(Long id){
        return "难受啊时间超出了赶紧抛出一个异常，线程池："+Thread.currentThread().getName()+"paymentInfoFalse,id: ";
    }
    //服务熔断 上面是服务降级
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), // 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), // 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60") // 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Long id) {
        if (id < 0) {
            throw new RuntimeException("******** id 不能为负数 *********");
        }
        String simpleUUID = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功， 流水号: " + simpleUUID;
    }

    public String paymentCircuitBreaker_fallback(Long id) {
        return "******** id 不能为负数 请稍后再试 o(╥﹏╥)o *********";
    }
}